Usually, bed bugs bites do not cause big harm but sometimes may trigger an allergic reaction. First wash the place of bite with soap and water and disinfect it by any remedies based on alcohol. If you have allergic reaction take antihistamines and seek medical attention immediately. In order to don’t get new bites you have to use effective bed bugs insecticides - about them you can read in our TOP-3 of the best bed bugs sprays.